export interface User{
    id?:number,
    username:string,
    password:string,
    salt?:string,
    avatar?:string,
    state?:number
}
export interface Category{
    id:number,
    name:string,
    pid:number
}
export interface Goods{
    id:number,
    category_id:number,
    name:string,
    price:number,
    picture:string,
    stock:number,
    spec:string,
    description:string,

    discount:number, //折扣
    num:number //商品数量
}
